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July 2025
Keysight 44476B
Keysight/Agilent 44476B, 3-Port, Coaxial Switching, 1 Connector Terminal, Microwave Relay Driver Module
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Keysight 44476B Microwave Relay Driver Module
The Keysight/Agilent 44476B Microwave Relay Driver Module combines relay mounting support, controlled impedance, and defined power ratings in one module format. The driver module helps build transfer switches and switch matrices within measurement environments. The module provides mounting flexibility for 50 ohm and 75 ohm coaxial relay configurations. It gives test engineers a structured platform for arranging microwave switching paths inside compatible systems. The relay driver module supports 8762X switches for automated three-port switching. When used with the 8762X switch family, the module supports switching applications up to 26.5 GHz. This capability suits microwave test setups where high-frequency signal paths require repeatable relay control.
The module supports a DC to 18 GHz input frequency range for installed coaxial relay assemblies. This frequency coverage allows the microwave relay driver module to handle automated microwave switching requirements, and it carries an input power rating of 1 W average. It also supports 100 W peak input power within the stated operating limits. The input voltage condition must remain below positive or negative 7 V DC for safe operation. The repeatability specification of the driver module is 0.03 dB after one million operations under stated test conditions. This repeatability helps maintain consistent signal behavior during automated switching cycles and production checks.
The Keysight 44476B supports option 011 for switches requiring a 5 V DC coil voltage. This option identifies the correct coil voltage requirement for proper compatible relay configurations. The relay module should be selected according to relay type, system frequency, and coil voltage needs. The module is suitable for RF and microwave test racks. It supports structured relay control where multiple signal paths must be selected during measurements. Its relay mounting layout reduces custom mechanical adaptation inside switching and control setups. The module is useful where test systems need repeatable coaxial switching without redesigning relay support hardware. The model must be installed by a highly trained professional. Its configuration also supports stable relay placement for rack-based microwave automation projects and validation work.
| Model | Keysight 44476B |
|---|---|
| Manufacturer | Keysight/Agilent |
| Part Type | Microwave Relay Driver Module |
| Number of Relays | Three Independent SPDT 50 Ω Coaxial Relays |
| Frequency Range | DC to 18 GHz |
| Characteristic Impedance | 50 Ω |
| Input Power Rating | 1 W Average, 100 W Peak |
| Repeatability (after 10 operations) | 0.03 dB |
| Connector | SMA (3 mm SMA Connector on Module Edge) |
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